Mat.



No. 775,633. P 'I' NTED NOV. 22, 1904.

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f .plzselzplmln 2. sammy im l1 l zal y l @45M aelzulelamg UNITED STATESPatented November 22, 1904.

PATENT OEETCE.

ELLIOTT S. NORTON AND GEORGE C. KNAUFF, OE CHICAGO, ILLINOIS, ASSIGNORSTO ACME FLEXIBLE CLASP CO., OF CHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS.

MAT.

SPECIFICATION forming part of Letters Patent No. 77 5,633, datedNovember 22, 1904.

Application flied July 1s, 1904.

T0 all whom, it Wha/y concern/s Be it known that we, VELLIOTT S. NORTONand GEORGE C. KNAUTF, citizens of the United States, residing atChicago, in the county of Cook and State of Illinois, have invented anewand useful Improvement in Mats, of which the following is aspecification.

This invention relates to improvements in metal door-mats of the generaltype shown k and described in Letters Patent No. 743, 303, granted onthe application of James E. MacMurray November 3, 1903, and whichconsists, broadly stated, of metal strips suitably corrugated and hingedtogether by Wires to form pivotally -connected intermeshing sections.Mats of this type are largely employed at the thresholds of publicplaces, where they are subjected necessarily to hard usage and where anyundue weakness in their construction soon becomes apparent. The oneparticular weakness found to exist in mats of this type as hithertoprovided lies in the construction of the opposite edge portions, whichin time become bent out of shape and broken under the impact of theheels of persons treading upon or kicking against them.

Our object is to overcome this weakness in the construction of the matsby providing them with reinforced edge portions of novel and durableconstruction; and it is further our object to render the said reinforcedportions practically continuous and slightly resilient, as hereinafterset forth.

Referring to the drawings, Figure l is a plan view of the matconstructed with our im: provements, and Fig. 2 an edge view of thesame.

The sections A, forming the main body portion of the mat, each consistof a flat strip of metal corrugated, preferably, in the manner shown toproduce the leg portions a, connected by the cross-pieces and inclinedcrosspieces c. Extending through the legs and inclined cross-pieces areseries of perforations which receive Wires or connecting-rods B in themanner shown, the sections intermeshing, as indicated, and beingpivotally joined together by the wires.

The end portions d Serial No. 217,011. (No model.)

of the strips A are bent over upon theA outer legs a of the sections andextend, preferably, at an acute angle thereto, to be at their free endsa distance approximating the thickness of the metal from the adjacentsides of the legs. These extensions or end portions have perforationscoinciding with the other perforations of the sections and are alsoperforated near theirfree ends. The outer legs of the sections are alsoprovided with perforations coinciding with the perforations in the freeend portions of the extensions. The Wires B, near opposite' ends, passbeyond the said extensions, are turned over upon the latter, andreturned through the perforations in thc free end portions of theextensions and through the perforations in the outerlegs lcoincidenttherewith. The wires are fastened in place at their ends, preferably byupsetting them against the inner-surfaces of the outer legs. In turningthe extensions (l upon the outer legs we form, preferably, roundedcorners to produce the convex endse. The extensions at their free endsmay extend close but out of contact with the convex ends e and arepreferably formed concave, as indicated at f. Thus the sections may turnupon the hinges formed by the wires or connecting-rods B withoutvinterference when it is desired to roll up the mat for transportation.The extensions cl at each side of the mat thus form Ypracticallycontinuous reinforcing edges, and as their free ends are slightly out ofcontact with the adjacent leg-'surfaces they may yield slightly whenkicked against.

While we prefer to construct our improvementsv throughout as shown anddescribed, they may be variously modified in the matter of detailswithout departing from the spirit of our' invention as defined by theclaims.

What we claim as new, and desire to secure by Letters Patent, is

l. A mat composed of a series of sections, each formed of a flat stripof metal corrugated between its end portions to produce legs connectedby cross-pieces and intermeshing with the next adjacent sections, theintermeshing parts of the sections being coincidently perforated, andthe free end portions of the strips being bent over upon the outer legsof the sections to form substantially continuous reinforcing edges forthe mat, and a connecting-rod passing through each series of coincidentperforations, extending beyond the outer said legs and bent over andreturned through coincident perforations in said free end portions andouter legs, substantially as described.

2. A mat composed of a series of sections, each formed of a fiat stripof metal corrugated between its end portions to produce legs connectedby cross-pieces and intermeshing with the next adjacent sections, theintermeshing parts of the sections being coincidently perforated, andthe free end portions of the ELLIOTT S. NORTON. GEORGE C. KNAUFF. Inpresence of- W. B.'DAv1Es, M. S. MAGKENZIE.

